C-12 / King Air Lead Site Mechanic - Oceanside, CA

As the Site Lead Mechanic you will lead the effort for operating and maintaining the aircraft, aircraft subsystems, and support equipment. The CLS system includes all aircraft maintenance and personnel, materials and inspections, launch and recovery of the aircraft, supply of all Contractor owned spares and support equipment through a Contractor Owned and Maintained Parts (COMP); repair and overhaul of all repairable spares at Federal Aviation Administration (FAA) certified repair stations; maintenance and repair of all support equipment; aircraft paint; engine repair and overhaul.

QUALFICATIONS

• 5 or more years aircraft maintenance experience
• 3 or more years maintaining King Air/1900 Airliner series aircraft to include complex aircraft modifications
• One or more year as a site lead under a similar type effort
• Current FAA A&P license
• Demonstrated ability to direct a work force in the performance of aircraft maintenance, repair, and modification
• Capable of performing duties as the on-site liaison with the Government
• Ability to obtain and maintain a United States DoD Secret Security Clearance. NOTE: US Citizenship is required to obtain and maintain a United States DoD Secret Security Clearance.
• High School Diploma/GED minimally required

$90,000 - $150,000 + housing allowance and hardship pay (if space allows)

Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed, marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters.

Compensation Details: $90000 - $150000

The compensation range or hourly rate listed for this position is provided as a good-faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws.

Benefits Overview:

Our health and welfare benefits are designed to support you and your priorities. Offerings include:

• Health, dental, and vision insurance
• Paid time off and holidays
• Retirement benefits (including 401(k) matching)
• Educational reimbursement
• Parental leave
• Employee stock purchase plan
• Tax-saving options
• Disability and life insurance
• Pet insurance

Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits.

Original Posting: 10/28/2026 - Until Filled

Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs.

Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed, marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters.